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<a href="cdev_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *  $Id: cdev.c,v ec403cf308eb 2013/02/12 14:46:43 fp $</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *  Copyright (C) 2006-2012  Florian Pose, Ingenieurgemeinschaft IgH</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> *  This file is part of the IgH EtherCAT Master.</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> *  The IgH EtherCAT Master is free software; you can redistribute it and/or</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> *  modify it under the terms of the GNU General Public License version 2, as</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> *  published by the Free Software Foundation.</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> *  The IgH EtherCAT Master is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> *  but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> *  Public License for more details.</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> *  You should have received a copy of the GNU General Public License along</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> *  with the IgH EtherCAT Master; if not, write to the Free Software</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> *  ---</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> *  The license mentioned above concerns the source code only. Using the</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment"> *  EtherCAT technology and brand is only permitted in compliance with the</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment"> *  industrial property and similar rights of Beckhoff Automation GmbH.</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment"> *****************************************************************************/</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#include &lt;linux/module.h&gt;</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#include &lt;linux/vmalloc.h&gt;</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#include &lt;linux/mm.h&gt;</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="cdev_8h.html">cdev.h</a>&quot;</span></div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="master_8h.html">master.h</a>&quot;</span></div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="slave__config_8h.html">slave_config.h</a>&quot;</span></div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="voe__handler_8h.html">voe_handler.h</a>&quot;</span></div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="ethernet_8h.html">ethernet.h</a>&quot;</span></div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="ioctl_8h.html">ioctl.h</a>&quot;</span></div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="cdev_8c.html#ad72dbcf6d0153db1b8d8a58001feed83">   50</a></span>&#160;<span class="preprocessor">#define DEBUG 0</span></div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="cdev_8c.html#ac12a62dff23c807f50608bb1c3b99a69">eccdev_open</a>(<span class="keyword">struct</span> inode *, <span class="keyword">struct</span> file *);</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="cdev_8c.html#a0676fd59dff0432b9f378923d290129e">eccdev_release</a>(<span class="keyword">struct</span> inode *, <span class="keyword">struct</span> file *);</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="keyword">static</span> <span class="keywordtype">long</span> <a class="code" href="cdev_8c.html#abbf50f74e0ed9ba2d8db5b1f9184a49b">eccdev_ioctl</a>(<span class="keyword">struct</span> file *, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>);</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="cdev_8c.html#a10a15bca817cd8044e0dd41af640b38e">eccdev_mmap</a>(<span class="keyword">struct</span> file *, <span class="keyword">struct</span> vm_area_struct *);</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;</div><div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="cdev_8c.html#a10f95a3683dceea630bcdd04e89e484f">   62</a></span>&#160;<span class="preprocessor">#define PAGE_FAULT_VERSION KERNEL_VERSION(2, 6, 23)</span></div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="preprocessor">#if LINUX_VERSION_CODE &gt;= PAGE_FAULT_VERSION</span></div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="cdev_8c.html#a1842100711470b348f93bb6d3c9e1712">eccdev_vma_fault</a>(<span class="keyword">struct</span> vm_area_struct *, <span class="keyword">struct</span> vm_fault *);</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="keyword">static</span> <span class="keyword">struct </span>page *eccdev_vma_nopage(</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        <span class="keyword">struct</span> vm_area_struct *, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>, <span class="keywordtype">int</span> *);</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;</div><div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="cdev_8c.html#afa770d8ee52fb7d01115e006879238bd">   75</a></span>&#160;<span class="keyword">static</span> <span class="keyword">struct </span>file_operations <a class="code" href="cdev_8c.html#afa770d8ee52fb7d01115e006879238bd">eccdev_fops</a> = {</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    .owner          = THIS_MODULE,</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    .open           = <a class="code" href="cdev_8c.html#ac12a62dff23c807f50608bb1c3b99a69">eccdev_open</a>,</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    .release        = <a class="code" href="cdev_8c.html#a0676fd59dff0432b9f378923d290129e">eccdev_release</a>,</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    .unlocked_ioctl = <a class="code" href="cdev_8c.html#abbf50f74e0ed9ba2d8db5b1f9184a49b">eccdev_ioctl</a>,</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    .mmap           = <a class="code" href="cdev_8c.html#a10a15bca817cd8044e0dd41af640b38e">eccdev_mmap</a></div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;};</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;</div><div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="cdev_8c.html#ac0b3a174ec0e5531598931789b842ca0">   85</a></span>&#160;<span class="keyword">struct </span>vm_operations_struct <a class="code" href="cdev_8c.html#ac0b3a174ec0e5531598931789b842ca0">eccdev_vm_ops</a> = {</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;<span class="preprocessor">#if LINUX_VERSION_CODE &gt;= PAGE_FAULT_VERSION</span></div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    .fault = <a class="code" href="cdev_8c.html#a1842100711470b348f93bb6d3c9e1712">eccdev_vma_fault</a></div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    .nopage = eccdev_vma_nopage</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;};</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno"><a class="line" href="structec__cdev__priv__t.html">   97</a></span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span>{</div><div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="structec__cdev__priv__t.html#a4b14b3ffbcd6f71b1b38c82a5b046992">   98</a></span>&#160;    <a class="code" href="structec__cdev__t.html">ec_cdev_t</a> *<a class="code" href="structec__cdev__priv__t.html#a4b14b3ffbcd6f71b1b38c82a5b046992">cdev</a>; </div><div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">   99</a></span>&#160;    ec_ioctl_context_t <a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>; </div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;} <a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a>;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;</div><div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="cdev_8h.html#a6c719d1b6848d5ce60411e19d51c22dc">  108</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="cdev_8c.html#a39eba670d1b58944bce6a8b3102db06c">ec_cdev_init</a>(</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;        <a class="code" href="structec__cdev__t.html">ec_cdev_t</a> *cdev, </div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;        <a class="code" href="structec__master.html">ec_master_t</a> *master, </div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;        dev_t dev_num </div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;        )</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;{</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    <span class="keywordtype">int</span> ret;</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    cdev-&gt;<a class="code" href="structec__cdev__t.html#ad6d790982111fa9d63a1e0d1baf0828f">master</a> = master;</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    cdev_init(&amp;cdev-&gt;<a class="code" href="structec__cdev__t.html#a5595c2c852f7a794ca343013e96e619a">cdev</a>, &amp;<a class="code" href="cdev_8c.html#afa770d8ee52fb7d01115e006879238bd">eccdev_fops</a>);</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    cdev-&gt;<a class="code" href="structec__cdev__t.html#a5595c2c852f7a794ca343013e96e619a">cdev</a>.owner = THIS_MODULE;</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    ret = cdev_add(&amp;cdev-&gt;<a class="code" href="structec__cdev__t.html#a5595c2c852f7a794ca343013e96e619a">cdev</a>,</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;            MKDEV(MAJOR(dev_num), master-&gt;<a class="code" href="structec__master.html#a78fe13519ced082c9a212711bec49ed3">index</a>), 1);</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    <span class="keywordflow">if</span> (ret) {</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;        <a class="code" href="master_8h.html#aece1fb7ea6af168ba7513c9d7b0a523a">EC_MASTER_ERR</a>(master, <span class="stringliteral">&quot;Failed to add character device!\n&quot;</span>);</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;    }</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;}</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;</div><div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="cdev_8h.html#a2f7ae759bd3e5d289477cc5d3f0194ff">  134</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="cdev_8c.html#a99583eb6867ecf756ff6f91f386408cd">ec_cdev_clear</a>(<a class="code" href="structec__cdev__t.html">ec_cdev_t</a> *cdev )</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;{</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    cdev_del(&amp;cdev-&gt;<a class="code" href="structec__cdev__t.html#a5595c2c852f7a794ca343013e96e619a">cdev</a>);</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;}</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;<span class="comment">/******************************************************************************</span></div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="comment"> * File operations</span></div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<span class="comment"> *****************************************************************************/</span></div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;</div><div class="line"><a name="l00145"></a><span class="lineno"><a class="line" href="cdev_8c.html#ac12a62dff23c807f50608bb1c3b99a69">  145</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="cdev_8c.html#ac12a62dff23c807f50608bb1c3b99a69">eccdev_open</a>(<span class="keyword">struct</span> inode *inode, <span class="keyword">struct</span> file *filp)</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;{</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <a class="code" href="structec__cdev__t.html">ec_cdev_t</a> *cdev = container_of(inode-&gt;i_cdev, <a class="code" href="structec__cdev__t.html">ec_cdev_t</a>, cdev);</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    <a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a> *priv;</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    priv = kmalloc(<span class="keyword">sizeof</span>(<a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a>), GFP_KERNEL);</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    <span class="keywordflow">if</span> (!priv) {</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;        <a class="code" href="master_8h.html#aece1fb7ea6af168ba7513c9d7b0a523a">EC_MASTER_ERR</a>(cdev-&gt;<a class="code" href="structec__cdev__t.html#ad6d790982111fa9d63a1e0d1baf0828f">master</a>,</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;                <span class="stringliteral">&quot;Failed to allocate memory for private data structure.\n&quot;</span>);</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;        <span class="keywordflow">return</span> -ENOMEM;</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;    }</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a4b14b3ffbcd6f71b1b38c82a5b046992">cdev</a> = cdev;</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>.writable = (filp-&gt;f_mode &amp; FMODE_WRITE) != 0;</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;    priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>.requested = 0;</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>.process_data = NULL;</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>.process_data_size = 0;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    filp-&gt;private_data = priv;</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;<span class="preprocessor">#if DEBUG</span></div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;    <a class="code" href="master_8h.html#a6cc0dea5aa374291f2379e844de741d0">EC_MASTER_DBG</a>(cdev-&gt;<a class="code" href="structec__cdev__t.html#ad6d790982111fa9d63a1e0d1baf0828f">master</a>, 0, <span class="stringliteral">&quot;File opened.\n&quot;</span>);</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;    <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;}</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;</div><div class="line"><a name="l00175"></a><span class="lineno"><a class="line" href="cdev_8c.html#a0676fd59dff0432b9f378923d290129e">  175</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="cdev_8c.html#a0676fd59dff0432b9f378923d290129e">eccdev_release</a>(<span class="keyword">struct</span> inode *inode, <span class="keyword">struct</span> file *filp)</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;{</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    <a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a> *priv = (<a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a> *) filp-&gt;private_data;</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;    <a class="code" href="structec__master.html">ec_master_t</a> *master = priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a4b14b3ffbcd6f71b1b38c82a5b046992">cdev</a>-&gt;<a class="code" href="structec__cdev__t.html#ad6d790982111fa9d63a1e0d1baf0828f">master</a>;</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;    if (priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>.requested) {</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;        <a class="code" href="group__ApplicationInterface.html#ga64219721098ec5069eab27f1923de9ea">ecrt_release_master</a>(master);</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;    }</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;    <span class="keywordflow">if</span> (priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>.process_data) {</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;        vfree(priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>.process_data);</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;    }</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;<span class="preprocessor">#if DEBUG</span></div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;    <a class="code" href="master_8h.html#a6cc0dea5aa374291f2379e844de741d0">EC_MASTER_DBG</a>(master, 0, <span class="stringliteral">&quot;File closed.\n&quot;</span>);</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;    kfree(priv);</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;    <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;}</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;</div><div class="line"><a name="l00200"></a><span class="lineno"><a class="line" href="cdev_8c.html#abbf50f74e0ed9ba2d8db5b1f9184a49b">  200</a></span>&#160;<span class="keywordtype">long</span> <a class="code" href="cdev_8c.html#abbf50f74e0ed9ba2d8db5b1f9184a49b">eccdev_ioctl</a>(<span class="keyword">struct</span> file *filp, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> cmd, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> arg)</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;{</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;    <a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a> *priv = (<a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a> *) filp-&gt;private_data;</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;#<span class="keywordflow">if</span> <a class="code" href="cdev_8c.html#ad72dbcf6d0153db1b8d8a58001feed83">DEBUG</a></div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;    <a class="code" href="master_8h.html#a6cc0dea5aa374291f2379e844de741d0">EC_MASTER_DBG</a>(priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a4b14b3ffbcd6f71b1b38c82a5b046992">cdev</a>-&gt;<a class="code" href="structec__cdev__t.html#ad6d790982111fa9d63a1e0d1baf0828f">master</a>, 0,</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;            <span class="stringliteral">&quot;ioctl(filp = 0x%p, cmd = 0x%08x (0x%02x), arg = 0x%lx)\n&quot;</span>,</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;            filp, cmd, _IOC_NR(cmd), arg);</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;    <span class="keywordflow">return</span> ec_ioctl(priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a4b14b3ffbcd6f71b1b38c82a5b046992">cdev</a>-&gt;<a class="code" href="structec__cdev__t.html#ad6d790982111fa9d63a1e0d1baf0828f">master</a>, &amp;priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>, cmd, (<span class="keywordtype">void</span> __user *) arg);</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;}</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;<span class="preprocessor">#ifndef VM_DONTDUMP</span></div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;</div><div class="line"><a name="l00218"></a><span class="lineno"><a class="line" href="cdev_8c.html#a17f0ec31019517ccc93149007ee45d9d">  218</a></span>&#160;<span class="preprocessor">#define VM_DONTDUMP VM_RESERVED</span></div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;</div><div class="line"><a name="l00228"></a><span class="lineno"><a class="line" href="cdev_8c.html#a10a15bca817cd8044e0dd41af640b38e">  228</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="cdev_8c.html#a10a15bca817cd8044e0dd41af640b38e">eccdev_mmap</a>(</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;        <span class="keyword">struct</span> file *filp,</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;        <span class="keyword">struct</span> vm_area_struct *vma</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;        )</div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;{</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;    <a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a> *priv = (<a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a> *) filp-&gt;private_data;</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;    <a class="code" href="master_8h.html#a6cc0dea5aa374291f2379e844de741d0">EC_MASTER_DBG</a>(priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a4b14b3ffbcd6f71b1b38c82a5b046992">cdev</a>-&gt;<a class="code" href="structec__cdev__t.html#ad6d790982111fa9d63a1e0d1baf0828f">master</a>, 1, <span class="stringliteral">&quot;mmap()\n&quot;</span>);</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;    vma-&gt;vm_ops = &amp;<a class="code" href="cdev_8c.html#ac0b3a174ec0e5531598931789b842ca0">eccdev_vm_ops</a>;</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;    vma-&gt;vm_flags |= <a class="code" href="cdev_8c.html#a17f0ec31019517ccc93149007ee45d9d">VM_DONTDUMP</a>; <span class="comment">/* Pages will not be swapped out */</span></div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;    vma-&gt;vm_private_data = priv;</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;    <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;}</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;</div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;<span class="preprocessor">#if LINUX_VERSION_CODE &gt;= PAGE_FAULT_VERSION</span></div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;</div><div class="line"><a name="l00255"></a><span class="lineno"><a class="line" href="cdev_8c.html#a1842100711470b348f93bb6d3c9e1712">  255</a></span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="cdev_8c.html#a1842100711470b348f93bb6d3c9e1712">eccdev_vma_fault</a>(</div><div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;        <span class="keyword">struct</span> vm_area_struct *vma, </div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;        <span class="keyword">struct</span> vm_fault *vmf </div><div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;        )</div><div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;{</div><div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> offset = vmf-&gt;pgoff &lt;&lt; PAGE_SHIFT;</div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;    <a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a> *priv = (<a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a> *) vma-&gt;vm_private_data;</div><div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;    <span class="keyword">struct</span> page *page;</div><div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;</div><div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;    if (offset &gt;= priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>.process_data_size) {</div><div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;        <span class="keywordflow">return</span> VM_FAULT_SIGBUS;</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;    }</div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;    page = vmalloc_to_page(priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>.process_data + offset);</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;    <span class="keywordflow">if</span> (!page) {</div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;        <span class="keywordflow">return</span> VM_FAULT_SIGBUS;</div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;    }</div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;</div><div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;    get_page(page);</div><div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;    vmf-&gt;page = page;</div><div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;</div><div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;    <a class="code" href="master_8h.html#a6cc0dea5aa374291f2379e844de741d0">EC_MASTER_DBG</a>(priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a4b14b3ffbcd6f71b1b38c82a5b046992">cdev</a>-&gt;<a class="code" href="structec__cdev__t.html#ad6d790982111fa9d63a1e0d1baf0828f">master</a>, 1, <span class="stringliteral">&quot;Vma fault, virtual_address = %p,&quot;</span></div><div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;            <span class="stringliteral">&quot; offset = %lu, page = %p\n&quot;</span>, vmf-&gt;virtual_address, offset, page);</div><div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;</div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;    <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;}</div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;</div><div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;</div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;<span class="keyword">struct </span>page *eccdev_vma_nopage(</div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;        <span class="keyword">struct</span> vm_area_struct *vma, </div><div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;        <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> address, </div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;        <span class="keywordtype">int</span> *type </div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;        )</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;{</div><div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> offset;</div><div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;    <span class="keyword">struct </span>page *page = NOPAGE_SIGBUS;</div><div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;    <a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a> *priv = (<a class="code" href="structec__cdev__priv__t.html">ec_cdev_priv_t</a> *) vma-&gt;vm_private_data;</div><div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;    <a class="code" href="structec__master.html">ec_master_t</a> *master = priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a4b14b3ffbcd6f71b1b38c82a5b046992">cdev</a>-&gt;<a class="code" href="structec__cdev__t.html#ad6d790982111fa9d63a1e0d1baf0828f">master</a>;</div><div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;</div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;    offset = (address - vma-&gt;vm_start) + (vma-&gt;vm_pgoff &lt;&lt; PAGE_SHIFT);</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;</div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;    <span class="keywordflow">if</span> (offset &gt;= priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>.process_data_size)</div><div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;        <span class="keywordflow">return</span> NOPAGE_SIGBUS;</div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;    page = vmalloc_to_page(priv-&gt;<a class="code" href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ctx</a>.process_data + offset);</div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;</div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;    <a class="code" href="master_8h.html#a6cc0dea5aa374291f2379e844de741d0">EC_MASTER_DBG</a>(master, 1, <span class="stringliteral">&quot;Nopage fault vma, address = %#lx,&quot;</span></div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;            <span class="stringliteral">&quot; offset = %#lx, page = %p\n&quot;</span>, address, offset, page);</div><div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;</div><div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;    get_page(page);</div><div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;    <span class="keywordflow">if</span> (type)</div><div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;        *type = VM_FAULT_MINOR;</div><div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;</div><div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;    <span class="keywordflow">return</span> page;</div><div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;}</div><div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;</div><div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;</div><div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="ttc" id="group__ApplicationInterface_html_ga64219721098ec5069eab27f1923de9ea"><div class="ttname"><a href="group__ApplicationInterface.html#ga64219721098ec5069eab27f1923de9ea">ecrt_release_master</a></div><div class="ttdeci">void ecrt_release_master(ec_master_t *master)</div><div class="ttdoc">Releases a requested EtherCAT master. </div><div class="ttdef"><b>Definition:</b> <a href="module_8c_source.html#l00614">module.c:614</a></div></div>
<div class="ttc" id="structec__cdev__t_html_ad6d790982111fa9d63a1e0d1baf0828f"><div class="ttname"><a href="structec__cdev__t.html#ad6d790982111fa9d63a1e0d1baf0828f">ec_cdev_t::master</a></div><div class="ttdeci">ec_master_t * master</div><div class="ttdoc">Master owning the device. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8h_source.html#l00050">cdev.h:50</a></div></div>
<div class="ttc" id="cdev_8c_html_a1842100711470b348f93bb6d3c9e1712"><div class="ttname"><a href="cdev_8c.html#a1842100711470b348f93bb6d3c9e1712">eccdev_vma_fault</a></div><div class="ttdeci">static int eccdev_vma_fault(struct vm_area_struct *, struct vm_fault *)</div><div class="ttdoc">Page fault callback for a virtual memory area. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00255">cdev.c:255</a></div></div>
<div class="ttc" id="cdev_8c_html_a17f0ec31019517ccc93149007ee45d9d"><div class="ttname"><a href="cdev_8c.html#a17f0ec31019517ccc93149007ee45d9d">VM_DONTDUMP</a></div><div class="ttdeci">#define VM_DONTDUMP</div><div class="ttdoc">VM_RESERVED disappeared in 3.7. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00218">cdev.c:218</a></div></div>
<div class="ttc" id="structec__cdev__priv__t_html"><div class="ttname"><a href="structec__cdev__priv__t.html">ec_cdev_priv_t</a></div><div class="ttdoc">Private data structure for file handles. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00097">cdev.c:97</a></div></div>
<div class="ttc" id="structec__cdev__t_html_a5595c2c852f7a794ca343013e96e619a"><div class="ttname"><a href="structec__cdev__t.html#a5595c2c852f7a794ca343013e96e619a">ec_cdev_t::cdev</a></div><div class="ttdeci">struct cdev cdev</div><div class="ttdoc">Character device. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8h_source.html#l00051">cdev.h:51</a></div></div>
<div class="ttc" id="structec__cdev__priv__t_html_a4b14b3ffbcd6f71b1b38c82a5b046992"><div class="ttname"><a href="structec__cdev__priv__t.html#a4b14b3ffbcd6f71b1b38c82a5b046992">ec_cdev_priv_t::cdev</a></div><div class="ttdeci">ec_cdev_t * cdev</div><div class="ttdoc">Character device. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00098">cdev.c:98</a></div></div>
<div class="ttc" id="master_8h_html"><div class="ttname"><a href="master_8h.html">master.h</a></div><div class="ttdoc">EtherCAT master structure. </div></div>
<div class="ttc" id="master_8h_html_a6cc0dea5aa374291f2379e844de741d0"><div class="ttname"><a href="master_8h.html#a6cc0dea5aa374291f2379e844de741d0">EC_MASTER_DBG</a></div><div class="ttdeci">#define EC_MASTER_DBG(master, level, fmt, args...)</div><div class="ttdoc">Convenience macro for printing master-specific debug messages to syslog. </div><div class="ttdef"><b>Definition:</b> <a href="master_8h_source.html#l00111">master.h:111</a></div></div>
<div class="ttc" id="ethernet_8h_html"><div class="ttname"><a href="ethernet_8h.html">ethernet.h</a></div><div class="ttdoc">Ethernet over EtherCAT (EoE) </div></div>
<div class="ttc" id="cdev_8c_html_a10a15bca817cd8044e0dd41af640b38e"><div class="ttname"><a href="cdev_8c.html#a10a15bca817cd8044e0dd41af640b38e">eccdev_mmap</a></div><div class="ttdeci">static int eccdev_mmap(struct file *, struct vm_area_struct *)</div><div class="ttdoc">Memory-map callback for the EtherCAT character device. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00228">cdev.c:228</a></div></div>
<div class="ttc" id="cdev_8c_html_ac0b3a174ec0e5531598931789b842ca0"><div class="ttname"><a href="cdev_8c.html#ac0b3a174ec0e5531598931789b842ca0">eccdev_vm_ops</a></div><div class="ttdeci">struct vm_operations_struct eccdev_vm_ops</div><div class="ttdoc">Callbacks for a virtual memory area retrieved with ecdevc_mmap(). </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00085">cdev.c:85</a></div></div>
<div class="ttc" id="master_8h_html_aece1fb7ea6af168ba7513c9d7b0a523a"><div class="ttname"><a href="master_8h.html#aece1fb7ea6af168ba7513c9d7b0a523a">EC_MASTER_ERR</a></div><div class="ttdeci">#define EC_MASTER_ERR(master, fmt, args...)</div><div class="ttdoc">Convenience macro for printing master-specific errors to syslog. </div><div class="ttdef"><b>Definition:</b> <a href="master_8h_source.html#l00085">master.h:85</a></div></div>
<div class="ttc" id="cdev_8c_html_abbf50f74e0ed9ba2d8db5b1f9184a49b"><div class="ttname"><a href="cdev_8c.html#abbf50f74e0ed9ba2d8db5b1f9184a49b">eccdev_ioctl</a></div><div class="ttdeci">static long eccdev_ioctl(struct file *, unsigned int, unsigned long)</div><div class="ttdoc">Called when an ioctl() command is issued. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00200">cdev.c:200</a></div></div>
<div class="ttc" id="structec__cdev__priv__t_html_a0c0e1018dbfb482ddb1610f8f0b2f848"><div class="ttname"><a href="structec__cdev__priv__t.html#a0c0e1018dbfb482ddb1610f8f0b2f848">ec_cdev_priv_t::ctx</a></div><div class="ttdeci">ec_ioctl_context_t ctx</div><div class="ttdoc">Context. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00099">cdev.c:99</a></div></div>
<div class="ttc" id="cdev_8c_html_ac12a62dff23c807f50608bb1c3b99a69"><div class="ttname"><a href="cdev_8c.html#ac12a62dff23c807f50608bb1c3b99a69">eccdev_open</a></div><div class="ttdeci">static int eccdev_open(struct inode *, struct file *)</div><div class="ttdoc">Called when the cdev is opened. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00145">cdev.c:145</a></div></div>
<div class="ttc" id="voe__handler_8h_html"><div class="ttname"><a href="voe__handler_8h.html">voe_handler.h</a></div><div class="ttdoc">Vendor specific over EtherCAT protocol handler. </div></div>
<div class="ttc" id="cdev_8c_html_a0676fd59dff0432b9f378923d290129e"><div class="ttname"><a href="cdev_8c.html#a0676fd59dff0432b9f378923d290129e">eccdev_release</a></div><div class="ttdeci">static int eccdev_release(struct inode *, struct file *)</div><div class="ttdoc">Called when the cdev is closed. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00175">cdev.c:175</a></div></div>
<div class="ttc" id="cdev_8c_html_a99583eb6867ecf756ff6f91f386408cd"><div class="ttname"><a href="cdev_8c.html#a99583eb6867ecf756ff6f91f386408cd">ec_cdev_clear</a></div><div class="ttdeci">void ec_cdev_clear(ec_cdev_t *cdev)</div><div class="ttdoc">Destructor. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00134">cdev.c:134</a></div></div>
<div class="ttc" id="cdev_8c_html_ad72dbcf6d0153db1b8d8a58001feed83"><div class="ttname"><a href="cdev_8c.html#ad72dbcf6d0153db1b8d8a58001feed83">DEBUG</a></div><div class="ttdeci">#define DEBUG</div><div class="ttdoc">Set to 1 to enable device operations debugging. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00050">cdev.c:50</a></div></div>
<div class="ttc" id="structec__cdev__t_html"><div class="ttname"><a href="structec__cdev__t.html">ec_cdev_t</a></div><div class="ttdoc">EtherCAT master character device. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8h_source.html#l00049">cdev.h:49</a></div></div>
<div class="ttc" id="ioctl_8h_html"><div class="ttname"><a href="ioctl_8h.html">ioctl.h</a></div><div class="ttdoc">EtherCAT master character device IOCTL commands. </div></div>
<div class="ttc" id="slave__config_8h_html"><div class="ttname"><a href="slave__config_8h.html">slave_config.h</a></div><div class="ttdoc">EtherCAT slave configuration structure. </div></div>
<div class="ttc" id="structec__master_html_a78fe13519ced082c9a212711bec49ed3"><div class="ttname"><a href="structec__master.html#a78fe13519ced082c9a212711bec49ed3">ec_master::index</a></div><div class="ttdeci">unsigned int index</div><div class="ttdoc">Index. </div><div class="ttdef"><b>Definition:</b> <a href="master_8h_source.html#l00195">master.h:195</a></div></div>
<div class="ttc" id="structec__master_html"><div class="ttname"><a href="structec__master.html">ec_master</a></div><div class="ttdoc">EtherCAT master. </div><div class="ttdef"><b>Definition:</b> <a href="master_8h_source.html#l00194">master.h:194</a></div></div>
<div class="ttc" id="cdev_8h_html"><div class="ttname"><a href="cdev_8h.html">cdev.h</a></div><div class="ttdoc">EtherCAT master character device. </div></div>
<div class="ttc" id="cdev_8c_html_afa770d8ee52fb7d01115e006879238bd"><div class="ttname"><a href="cdev_8c.html#afa770d8ee52fb7d01115e006879238bd">eccdev_fops</a></div><div class="ttdeci">static struct file_operations eccdev_fops</div><div class="ttdoc">File operation callbacks for the EtherCAT character device. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00075">cdev.c:75</a></div></div>
<div class="ttc" id="cdev_8c_html_a39eba670d1b58944bce6a8b3102db06c"><div class="ttname"><a href="cdev_8c.html#a39eba670d1b58944bce6a8b3102db06c">ec_cdev_init</a></div><div class="ttdeci">int ec_cdev_init(ec_cdev_t *cdev, ec_master_t *master, dev_t dev_num)</div><div class="ttdoc">Constructor. </div><div class="ttdef"><b>Definition:</b> <a href="cdev_8c_source.html#l00108">cdev.c:108</a></div></div>
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